A cooling system including a first inlet assembly connected to a mixing assembly, the first inlet assembly including a vaporising pump configured to be connected to a first fluid source, and a second inlet assembly connected to the mixing assembly, the second inlet assembly configured to be connected to a second fluid source, wherein a first fluid is pumped by the vaporising pump from the first fluid source to the mixing assembly in order to be mixed with a second fluid from the second fluid source such that a mixture having a predetermined state is substantially achieved.